hey, so i just got a graphing calculator because i just started pre-calc/trig, and i dont know how to use it. could you help me with some basic functions?
for example, i want to check these answers graphically:
equation1: y=12-4x
answer1: x=3
equation2: y=x^2-2.5x-6
answer2: x=-1.5,4
i dont know squat about the calculator yet, so please be patient and tell me exactly what to do.